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230mhz power private network communication module receiver electrical performance test device

A communication module and electric power private network technology, which is applied in the field of wireless communication module performance testing, can solve problems such as inability to flexibly adjust baseband signal generation timing, unable to baseband signal, difficult to use, etc.

Active Publication Date: 2019-01-25
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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AI Technical Summary

Problems solved by technology

[0002] A total of fifteen pairs of duplex frequency points and ten simplex frequency points in the 230 MHz (VHF) frequency band are approved by the National Radio Regulatory Commission and protected for use in power load management systems. During the receiving performance test of the 230MHz communication module in the power private network, it is necessary to generate The radio frequency signal used for testing, the radio frequency signal is modulated by the carrier signal and the baseband signal containing specific information, the baseband signal includes preamble, frame header, data field, check code, end code, etc., the baseband signal contains the modulation part There is also a non-modulation part. The general-purpose baseband chip cannot flexibly adjust the generation timing of the baseband signal, and cannot choose whether to modulate or not for different components of the baseband signal. It is difficult to use in the 230MHz communication module test

Method used

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  • 230mhz power private network communication module receiver electrical performance test device

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Embodiment

[0038] 230MHz power private network communication module receiver electrical performance test method:

[0039]Firstly, the preamble output of a specific format and length is generated under the timing control of the baseband stream, the message is generated to form a data stream that meets the frame format, and sent to the modulator to form a modulated data stream, and finally the end code generation module generates a specific format and length. The end code, the preamble, the modulated data stream and the end code constitute the baseband signal;

[0040] Secondly, the 230MHz radio frequency generation module generates the 230M communication module test signal after the baseband signal and the 230MHz carrier signal are frequency-modulated;

[0041] Finally, the test signal is sent to the 230MHz communication module to be tested, and the demodulated data of the communication module is sent to the sending and receiving message comparison module for comparison of sending and rec...

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Abstract

The invention provides a receiver electric performance test device and test method for a 230MHz electric power private network communication module. The device comprises a message generation module, a baseband stream time sequence control module, a lead code generation module, a modulator module, an end code generation module, a 230MHz radio frequency generation module and transceiving message comparison module. The device and the method have the advantages that 1, receiver electric performance indexes such as receiving sensitivity and receivable frequency offset of a 230MHz private network communication module under special messages can be tested; and 2, information such as frequency and pulse length of a lead code and an end code can be adjusted according to different 230MHz electric power private network communication criteria; length, a frame format and a modulation mode of data frames can be adjusted; criterion demands of different versions can be adapted; and test demands of messages of any code pattern and length can be realized.

Description

technical field [0001] The invention provides a 230MHz power private network communication module receiver electrical performance testing device and testing method, belonging to the technical field of wireless communication module performance testing. Background technique [0002] A total of fifteen pairs of duplex frequency points and ten simplex frequency points in the 230 MHz (VHF) frequency band are approved by the National Radio Regulatory Commission and protected for use in power load management systems. During the receiving performance test of the 230MHz communication module in the power private network, it is necessary to generate The radio frequency signal used for testing, the radio frequency signal is modulated by the carrier signal and the baseband signal containing specific information, the baseband signal includes preamble, frame header, data field, check code, end code, etc., the baseband signal contains the modulation part There is also a non-modulation part....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/29
CPCH04B17/29
Inventor 王新刚朱彬若顾臻朱铮江剑峰翁素婷马骏
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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